NutriNZ Marine Collagen 2500 is a premium grade supplement that replenishes and boosts natural collagen production, repairs and strengthens from the inside out to promote well-being and healthy ageing. It is sourced from the pristine coastal waters of New Zealand and is naturally composed of the same 20 types of amino acids that are found in the body. Collagen is the most abundant protein in the human body and declines with age.